Grade 10 · Math
Find a corresponding side in similar triangles
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Two triangles are similar. Every side of the larger triangle is 3 times its corresponding side in the smaller triangle. A smaller side is 6 cm. How long is the corresponding larger side in centimeters?
- 18
- 19
- 17
- 20
See the answer & why
18
Corresponding sides share the scale factor 3. 6 × 3 = 18 cm.
A little hint: Match corresponding sides, then apply the common scale factor.
Use the similarity statement or given correspondence to match the correct sides.
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